I intend to post more on this soon, but for now feast your eyes on this great little video that I think can help regardless of whether you solo queue or not.
So True.
One thing I didn't agree with though is his blasse statement about "don't pick torbjan because everyone knows how to counter his turrets now". I'm still not sure how to counter a turret in solo queue.
I guess it depends how good the Torb player is but i like to attack it from outside its 45Deg angle (if pos) with a phara or McCree or junkrat or the turret takes time to acquire you as a target.